Water-meter



2 Sheets-Sheet 1. L. H. NASH. WATER METER.

(No Modl.)

No. 548,585. Patented Oct. 22, 1895.

IN ENTHI I I g WITNESSES:

URNEYJ p ms 2 Shets-Sheet 2. L. H. NASH.

WATER METER.

(No Model.)

N0. 548,585. Patented 055.22, 1895.

0 EL 8 S M 1 W mitted through the spud A by inletpassages UNITED STATESPATENT LEWIS HALLOCK NASH, OF SOUTH NORVVALK, CONNECTICUT.

WATER-METER.

$PEGIFIGATION forming part of Letters Patent No. 548,585, dated October22, 1895.

Application filed December 6 1893.

To all whom it may concern:

Be it known that I, LEWIS HALLOCK NASH, a citizen of the United States,residing at South Norwalk, in the county of Fairfield and State ofConnecticut, have invented certain new and useful Improvements inater-Meters, of which the following is a specification.

My present invention relates to nutatingpiston water-meters; and itconsists of certain novel parts and combination of parts particularlypointed out in the claims concluding this specification.

Referring to the accompanying drawings, Figure 1 is a vertical sectionon the line 1 1, Fig. 2, through a meter embodying my present invention;and Fig. 2 is a top View of the measuring-chamber, the upper head-plateof the case being removed. Fig. 3 is a plan view of the piston, and Fig.4 is a top view of the bottom plate of the lower measuring-chamber.

The following is a description of the structure shown in the drawings.

Referring to Fig. 1, A is the inlet-spud, and B the outlet-spud; G isthe upper head-plate of the case, and D the lower head-plate. E E is themeasuring-chamber divided by the partit on H into two separate chambers.The piston is provided with two flat disks J and J parallel to eachother. The disk J operates in the upper measuring-chamber F and disk Joperates in the lower 1neasuring-chamher G.

K is the diaphragm in the lower measuringchamber, and K is the diaphragmin the upper measuring-chamber. Both pistons are slit in the ordinaryway to straddle their respective diaphragms, as shown in Fig. 3.

L is the inlet-port, and M the outlet-port, of the lower chamber, while0 is the outlet-port, and N the inlet-port, of the upper chamber.

T is a pin projecting from the piston, making connection with thespindle of the registering mechanism.

The operation is as follows: Water is ad- N and L into the upper andlower chambers on opposite sides, and being metered passes out of theoutlet-ports N and O to the outletspud 13.

Among the advantages of the form of piston shown is the fact that it maybe cheaply constructed and that the partition H between Serial No.492,905. (No model.)

the chambers furnishes a broad bearing for the ballot the piston.

The feature of a broad bearing wider at the ball than it is at thespherical surface of the case is not necessarily dependent upon theemployment of fiat disks, as the same may obviously be obtained withacone or cones provided their seats do not form too small an angle witheach other.

The partition H is made in two halves, between Which are clamped thediaphragms K and K.

In the foregoing specification I have referred to some of themodifications which might be adopted in practicing my invention; but Ihave not endeavored to specify all the modifications which might beemployed, the object of this specification being to instruct personsskilled in the art to which my invention relates to make and use thesame in the form at present preferred by me; but it will be understoodthat mention by me of some of the modifications is not intended toexclude others not referred to, but which are within the spirit andscope of my invention.

In the claims the omission of an element or the omission of reference tothe detail features of the elements mentioned is intended to be a formaldeclaration of the fact that the omitted elements or features are notessential to the inventions therein severally covered.

What I claim isv 1. In a nutating piston water meter, the combination ofapiston provided with a plurality of disks and a ball bearing combinedwith a plurality of measuring chambers and a partition between saidchambers broader at the ball of the piston than it is at the case walls,furnishing a seat or guide for said ball.

2. In a nutating piston water meter, the combination of a pistonprovided with a plurality of flat disks and a ball bearing combined witha plurality of measuring chambers and a partition between said chambersbroader at the ball of the piston than it is at the case walls,furnishing a seat or guide for said ball.

LEWIS HALLOGK NASH.

Witnesses J. EDGAR BULL, M. WILSON.

